542001 has 4 divisors (see below), whose sum is σ = 722672. Its totient is φ = 361332.

The previous prime is 541999. The next prime is 542021. The reversal of 542001 is 100245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 542001 - 2¹ = 541999 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90331 + ... + 90336.

It is an arithmetic number, because the mean of its divisors is an integer number (180668).

2⁵⁴²⁰⁰¹ is an apocalyptic number.

It is an amenable number.

542001 is a deficient number, since it is larger than the sum of its proper divisors (180671).

542001 is a wasteful number, since it uses less digits than its factorization.

542001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180670.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 542001 is about 736.2071719292. The cubic root of 542001 is about 81.5329887656.

Adding to 542001 its reverse (100245), we get a palindrome (642246).

The spelling of 542001 in words is "five hundred forty-two thousand, one".